Billy Martin (born December 25, 1956, in Evanston, Illinois, United States), is a former professional tennis player from the United States. During his career he won 1 singles titles and 3 doubles titles. He achieved a career-high singles ranking of World No. 32 in 1975. Martin currently serves as the head coach for the UCLA Bruins men's tennis team, a position he has held for the past 24 years since 1994. Martin, who played at UCLA, has a 14 straight top 5 NCAA team finishes and a 9 consecutive 20-win seasons. He was named ITA (Intercollegiate Tennis Association) division 1 National Coach of the Year and is a member of ITA Hall of Fame.